Golf club grip and golf club

Abstract

[Problem] To provide a golf club grip having excellent anti-slipping performance, and feeling when the grip is wet, and further to provide a golf club grip having excellent durability and an improved head speed. [Solution] The golf club grip comprises a cylindrical portion for inserting a shaft, wherein the golf club grip has a narrow groove region comprising narrow grooves in an occupation ratio of 35% or more per 25 mm 2 at at least a part of a surface of the cylindrical portion, and the narrow groove has a width (w) of from 0.1 mm to 0.7 mm and a depth (h) of from 0.1 mm to 1.0 mm. In addition, an interval (d) between the narrow grooves are preferably 1.5 mm or less.

The invention claimed is: 
     
       1. A golf club grip comprising a cylindrical portion for inserting a shaft,
 wherein the cylindrical portion is formed from a first rubber composition containing a nonpolar rubber as a base rubber, 
 the golf club grip has a narrow groove region comprising narrow grooves in an occupation ratio of 35% or more per 25 mm 2  at at least a part of a surface of the cylindrical portion, 
 the narrow groove region has a total area of 1400 mm 2  or more, 
 in the narrow groove region, an interval (d) between the narrow grooves is 1.5 mm or less, 
 the narrow groove has a width (w) of from 0.1 mm to 0.7 mm and a depth (h) of from 0.1 mm to 1.0 mm, 
 a cross-sectional shape of the narrow groove is a V shape, a roughly V shape, or a U shape, 
 a ratio (wd/ws) of a width (wd) of the narrow groove at the deepest position to a width (ws) of the narrow groove at the grip surface is 0.8 or less, 
 the narrow grooves have a first narrow groove group formed in parallel to each other, and a second narrow groove group intersecting with the first narrow groove group and formed in parallel to each other, and 
 the angle formed between the first narrow groove group and the second narrow groove group is 45° or more and 135° or less. 
 
     
     
       2. The golf club grip according to  claim 1 , wherein when a tip side end of the cylindrical portion is adopted as 0%, and a bat side end of the cylindrical portion is adopted as 100%,
 the narrow groove region is formed at at least a part of a range of from 10% to 100% of the cylindrical portion. 
 
     
     
       3. The golf club grip according to  claim 1 , wherein in the narrow groove region, a ratio (d/w) of the interval (d) between the narrow grooves to the width (w) of the narrow groove ranges from 1 to 5. 
     
     
       4. The golf club grip according to  claim 1 , wherein
 the narrow groove region is formed of a plurality of narrow groove positions, 
 an area of each narrow groove position is 180 mm 2  or more, 
 each narrow groove position is continuously formed in the peripheral direction of the cylindrical portion, and 
 the narrow groove positions are intermittently arranged in the axis direction of the cylindrical portion. 
 
     
     
       5. The golf club according to  claim 4 , wherein
 each narrow groove position is continuously formed in a V shape or U shape in the peripheral direction. 
 
     
     
       6. The golf club grip according to  claim 1 , wherein the angle formed between the first narrow groove group and the second narrow groove group is 90°. 
     
     
       7. The golf club grip according to  claim 1 , wherein an island portion is formed by separation of the narrow grooves and a shape of the island portion is a truncated quadrangular pyramid. 
     
     
       8. The golf club grip according to  claim 1 , wherein an average length of the narrow grooves is 10 mm or more. 
     
     
       9. A golf club comprising a shaft, a head provided on one end of the shaft, and a grip provided on another end of the shaft,
 wherein the grip is a golf club grip comprising a cylindrical portion for inserting the shaft, 
 the cylindrical portion is formed from a first rubber composition containing a nonpolar rubber as a base rubber, 
 the golf club grip has a narrow groove region comprising narrow grooves in an occupation ratio of 35% or more per 25 mm 2  at at least a part of a surface of the cylindrical portion, 
 the narrow groove region has a total area of 1400 mm 2  or more, 
 in the narrow groove region, an interval (d) between the narrow grooves is 1.5 mm or less, 
 the narrow groove has a width (w) of from 0.1 mm to 0.7 mm and a depth (h) of from 0.1 mm to 1.0 mm, 
 a cross-sectional shape of the narrow groove is a V shape, a roughly V shape, or a U shape, 
 a ratio (wd/ws) of a width (wd) of the narrow groove at the deepest position to a width (ws) of the narrow groove at the grip surface is 0.8 or less, 
 the narrow grooves have a first narrow groove group formed in parallel to each other, and a second narrow groove group intersecting with the first narrow groove group and formed in parallel to each other, and 
 the angle formed between the first narrow groove group and the second narrow groove group is 45° or more and 135° or less. 
 
     
     
       10. The golf club according to  claim 9 , wherein when a tip side end of the cylindrical portion is adopted as 0%, and a bat side end of the cylindrical portion is adopted as 100%, the narrow groove region is formed at at least a part of a range of from 10% to 100% of the cylindrical portion. 
     
     
       11. The golf club according to  claim 9 , wherein in the narrow groove region, a ratio (d/w) of the interval (d) between the narrow grooves to the width (w) of the narrow groove ranges from 1 to 5. 
     
     
       12. The golf club according to  claim 9 , wherein the angle formed between the first narrow groove group and the second narrow groove group is 90°. 
     
     
       13. The golf club grip according to  claim 9 , wherein an island portion is formed by separation of the narrow grooves and a shape of the island portion is a truncated quadrangular pyramid. 
     
     
       14. The golf club grip according to  claim 9 , wherein an average length of the narrows groove is 10 mm or more. 
     
     
       15. A golf club grip comprising a cylindrical portion for inserting a shaft,
 wherein the cylindrical portion is formed from a first rubber composition containing a nonpolar rubber as a base rubber, 
 the golf club grip has a narrow groove region and other region than the narrow groove region at a surface of the cylindrical portion, 
 the narrow groove region has a total area of 1400 mm 2  or more, 
 in the narrow groove region, an interval (d) between the narrow grooves is 1.5 mm or less, 
 the narrow groove region comprises narrow grooves in an occupation ratio of 35% or more per 25 mm 2 , 
 the narrow groove has a width (w) of from 0.1 mm to 0.7 mm and a depth (h) of from 0.1 mm to 1.0 mm, 
 a cross-sectional shape of the narrow groove is a V shape, a roughly V shape, or a U shape, 
 a ratio (wd/ws) of a width (wd) of the narrow groove at the deepest position to a width (ws) of the narrow groove at the grip surface is 0.8 or less, 
 the narrow grooves have a first narrow groove group formed in parallel to each other, and a second narrow groove group intersecting with the first narrow groove group and formed in parallel to each other, 
 the angle formed between the first narrow groove group and the second narrow groove group is 45° or more and 135° or less, 
 the narrow groove region is formed of a plurality of narrow groove positions, 
 an area of each narrow groove position is 180 mm 2  or more, 
 the narrow groove positions are intermittently arranged in the axis direction of the cylindrical portion, and 
 the other region formed between the narrow groove regions is continuously formed in a V shape or U shape in the peripheral direction of the cylindrical portion. 
 
     
     
       16. The golf club grip according to  claim 15 , wherein an island portion is formed by separation of the narrow grooves and a shape of the island portion is a truncated quadrangular pyramid. 
     
     
       17. The golf club grip according to  claim 15 , wherein an average length of the narrow grooves is 10 mm or more. 
     
     
       18. A golf club grip comprising a cylindrical portion for inserting a shaft,
 wherein the cylindrical portion is formed from a first rubber composition containing a nonpolar rubber as a base rubber, 
 the golf club grip has a narrow groove region comprising narrow grooves in an occupation ratio of 35% or more per 25 mm 2  at at least a part of a surface of the cylindrical portion, 
 the narrow groove region has a total area of 1400 mm 2  or more, 
 in the narrow groove region, an interval (d) between the narrow grooves is 1.5 mm or less, 
 the narrow groove has a width (w) of from 0.1 mm to 0.7 mm and a depth (h) of from 0.1 mm to 1.0 mm, 
 a cross-sectional shape of the narrow groove is a V shape, a roughly V shape, or a U shape, 
 a ratio (wd/ws) of a width (wd) of the narrow groove at the deepest position to a width (ws) of the narrow groove at the grip surface is 0.8 or less, 
 the narrow grooves have a first narrow groove group formed in parallel to each other, and a second narrow groove group intersecting with the first narrow groove group and formed in parallel to each other, 
 the angle formed between the first narrow groove group and the second narrow groove group is 45° or more and 135° or less, 
 the narrow groove region is formed of a plurality of narrow groove positions, 
 an area of each narrow groove position is 180 mm 2  or more, 
 at least a part of the narrow groove region is intermittently formed in the axis direction of the cylindrical portion. 
 
     
     
       19. The golf club grip according to  claim 18 , wherein an island portion is formed by separation of the narrow grooves and a shape of the island portion is a truncated quadrangular pyramid. 
     
     
       20. The golf club grip according to  claim 18 , wherein an average length of the narrow grooves is 10 mm or more.